Doosan Ingersoll Rand XP185WIR User manual

ELECTRONIC SERVICE MANUAL
Doosan Infracore Portable Power
P.O. Box 868 - 501 Sanford Ave
Mocksville, N.C. 27028
www.doosanportablepower.com
Book: 23307366 (6/08)
This manual contains important safety information.
Do not destroy this manual.
This manual must be available to the personnel who operate and maintain this machine.
XP185WIR
P260WIR
7/51
7/71
Revised (10-12)
Doosan purchased Bobcat Company from Ingersoll-Rand Company in
2007. Any reference to Ingersoll-Rand Company or use of trademarks,
service marks, logos, or other proprietary identifying marks belonging
to Ingersoll-Rand Company in this manual is historical or nominative
in nature, and is not meant to suggest a current affiliation between
Ingersoll-Rand Company and Doosan Company or the products of
either.

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Book No. 23307366 (06/08)
TABLE OF CONTENTS
SECTION1.......ManualDescription
SECTION2.......GeneralInformationAndOperationalTheory
SECTION3.......ServiceTools
SECTION4.......ElectronicSystemsTroubleshooting
Procedures And Techniques
SECTION5.......SystemSchematicDiagrams
SECTION6.......ElectronicComponent Location Drawings
SECTION7.......IndividualCircuitDiagrams
SECTION8.......ElectricalConnector Information
SECTION9.......ElectricalPartsList
SECTION10......AlertsandShutdownsList
SECTION11......RecommendedSpareParts

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Book No. 23307366 (06/08)
SECTION 1
MANUAL DESCRIPTION
This manual contains all of the information concerning the electrical and electronic systems for
the XP185, P260WIR compressor family. It provides all information necessary to service, trou-
bleshoot and order parts for this machine.
It is organized into 12 sections.
Sections 2 thru 4 cover systems operation and troubleshooting procedures.
Sections 5 thru 7 have location diagrams, drawings of specific circuits and systems schematics.
Section 8 has information concerning the electrical connectors used, including removal and
replacement.
Section 9 contains the parts list with ordering information.
Section 10 contains the list of Alerts and Shutdowns.
Section 11 contains a list of recommended spare parts for servicing.

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Book No. 23307366 (06/08)
SECTION 2
GENERAL INFORMATION
and
OPERATIONAL THEORY

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Book No. 23307366 (06/08)
GENERAL INFORMATION AND OPERATIONAL
THEORY
General
This family of machines has an electronic monitor and
control system to provide discharge air pressure
control and engine and package monitor functions.
The system uses the SECU controller to perform these
functions. The electrical system connects all the
necessary switches, sensors and transducers to the
controller in order for it to perform the monitor and
control functions.
SECU Controller
The controller is the heart of the machine monitor and
control system. It provides data collection, alarming
and control functions for compressor operations. It is a
microcontroller based unit with analog and digital
inputs and outputs.
The controller has a LED display for diagnostics. A
number, 1--9, is shown to indicate a system problem.
The first function of the controller is to scan all analog
and digital inputs at a fixed interval. These inputs are
scanned every 10 milliseconds. The values are then
compared against minimum and maximum values and
an ALERT or SHUTDOWN is issued, if a value is out of
range. The controller will indicate SHUTDOWNS and
ALERTS for compressor system. These are indicated
through fault codes that are displayed on the SECU
LED display.
The second function of the controller is engine speed
control. The controller monitors the regulation system
air pressure and varies the engine throttle to maintain
the setpoint discharge air pressure. The setpoint
pressure is set using the regulator on the separator
tank.
The third function of the controller is to communicate
with the diesel engine controller via the J1939 CAN
network. It retrieves diagnostic information over
J1939.